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Pinion Gear 77731-01

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Rear Planetary

Sonnax pinion gear 77731-01 is a direct replacement for worn or damaged OE pinion gears in rear planetaries in listed GM transmissions. Helical pinion gear crafted...Read More

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4L60, 4L60-E, 4L65-E, 4L70-E Pinion Gear 77731-01

Pinion Needle Roller 77731-03

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Fits 4-pinion rear planetary.

Sonnax pinion needle roller is a direct replacement for worn or damaged OE needle rollers.  Sonnax pinion needle rollers are specifically toleranced for use with matching pins and gears.

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4L60, 4L60-E, 4L65-E, 4L70-E Pinion Needle Roller 77731-03

Batwing Washer 77731-05

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Fits 4-pinion rear planetary.

Sonnax batwing washer 77731-05 is a direct replacement for worn or damaged OE washers in listed GM transmissions. Made from solid bronze, Sonnax washers eliminate ...Read More

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4L60, 4L60-E, 4L65-E, 4L70-E Batwing Washer 77731-05

Pinion Pin 77731-02K

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Fits 4-pinion rear planetary.

Sonnax pinion pin 77731-02K is a direct replacement for worn or damaged OE pinion pins in rear planetaries in listed GM transmissions. Hollow design features lube holes to reduce planetary burn-up.

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4L60, 4L60-E, 4L65-E, 4L70-E Pinion Pin 77731-02K

2nd Gear "Corvette" Ratio Servo Kit 77701-04K

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • .74 Ratio

Sonnax 2nd Gear "Corvette" ratio servo kit 77701-04K provides increased apply area resulting in improved holding power for firmer 1-2 and 3-4 shifts in 4L60 (700-R...Read More

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4L60, 4L60-E, 4L65-E, 4L70-E 2nd Gear "Corvette" Ratio Servo Kit 77701-04K

Rivet GM-RV-9

  • 245mm LU (3T40, 3L30, TH200C, 4T60-E, 4L60 & E:S-10 only)
  • 245mm LU Euro (5L40-E)
  • 258mm LU (4L60-E, 5L40-E)
  • 258mm LU (4T65-E)
  • 265mm LU (4T60-E, 4T80-E)
  • 280mm LU (4L60-E) “VJCX”
  • 300mm (4L60-E)
  • 4L60-E (298mm), Single-Plate Performance Converter
  • 4L60-E (300mm), Single-Plate Performance Converter
  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)
  • 4L80-E (Late Single Stator)
  • 6L80 (300mm), Single-Plate Performance Converter
  • CD4E, 9-1/4" (3.0L & 2.3L)

Early GM 300mm units used both dark and silver rivets. The silver rivets have been known to fail and can now be replaced with Sonnax general purpose rivets GM-RV-9.

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245mm LU (3T40, 3L30, TH200C, 4T60-E, 4L60 & E:S-10 only), 245mm LU Euro (5L40-E), 258mm LU (4L60-E, 5L40-E), 258mm LU (4T65-E), 265mm LU (4T60-E, 4T80-E), 280mm LU (4L60-E) “VJCX”, 300mm (4L60-E), 4L60-E (298mm), Single-Plate Performance Converter, 4L60-E (300mm), Single-Plate Performance Converter, 4L80-E (Dual Stator), 4L80-E (Early Single Stator), 4L80-E (Late Single Stator), 6L80 (300mm), Single-Plate Performance Converter, CD4E, 9-1/4" (3.0L & 2.3L) Rivet GM-RV-9

October 08, 2015

Transmission Report Newsletter: October 2015

Featured in this issue:Remanufactured Valve BodiesSolenoid Strategies Webinar722.9 Valve Body RepairsZF6HP & 6R80 Precision BushingsRE5R05A Pressure ProblemsWhat’s New for Powertrain Expo 2015

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Smart-Tech® Input Housing Kit with Heavy Duty Input Shaft 77733-10K

  • 4L60
  • 4L60-E
  • NEW VERSION AVAILABLE UNDER PART #77733-10KB. Fits '85-later 298mm units with 30-spline input shaft. For '82-84 298mm units with 27-spline input shaft, converter and stator shaft will need to be updated to '85-later design.
This part has been discontinued. Click here to see the part instructions.

March 24, 2023

Transmission Report Newsletter: March 2023

Featured in this issue:New 6L80/90 Remanufactured TEHCMsNew Ford, GM & ZF Parts to Help Keep the Comebacks AwayRostra Powertrain Controls: New Solenoids, Sensors & MoreTech Tip: Ford 10-Speed ATF Venting & Overheating

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August 01, 2016

Torque Converter Journal: August 2016

Featured in this issue:Dampered & Damperless Converters: What's the StoryWovern Carbon Friction RingsPerformance Converter KitsNew Converter PartsHeavy-Duty Chrysler 48RE & GM 4L60/E Series Output Shafts

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September 03, 2013

Transmission Report Newsletter: August 2013

Featured in this issue:Genuine SonnaxVacuum Testing GuidesGM6L45-6L90 SolutionsNew Transmission KitsReamer Care

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Zip Kit® 6F50-ZIP

  • 6F50
  • 6F55

Sonnax Zip Kit 6F50-ZIP targets the root cause of multiple concerns by sealing critical circuit pressure losses in the Ford 6F50 and 6F55 valve bodies. The kit con...Read More

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6F50, 6F55 Zip Kit® 6F50-ZIP

Checkball 10000-08

  • 200-4R
  • 32RH
  • 45RFE
  • 46RE
  • 46RH
  • 47RE
  • 48RE
  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 4L80-E
  • 4L85-E
  • 4R100
  • 4R44E
  • 4R55E
  • 4R70E
  • 4R70W
  • 4R75E
  • 4R75W
  • 4T60-E
  • 4T65-E
  • 545RFE
  • 5R44E
  • 5R55E
  • 60-40LE
  • 60-41SN
  • 65RFE
  • 66RFE
  • 68RFE
  • 6F35 (Gen. 1)
  • 6F35 (Gen. 2)
  • 6F35 (Gen. 3)
  • 6F50
  • 6F55
  • 6L45
  • 6L50
  • 6L80
  • 6L90
  • 6T30 (Gen. 1)
  • 6T30 (Gen. 2)
  • 6T40 (Gen. 1)
  • 6T40 (Gen. 2)
  • 6T45 (Gen. 1)
  • 6T45 (Gen. 2)
  • 6T50 (Gen. 1)
  • 6T50 (Gen. 2)
  • 6T70 (Gen. 1)
  • 6T75 (Gen. 1)
  • A340E
  • A340F
  • AODE
  • E4OD
  • TH200
  • TH200C
  • TH400
  • TH425

Sonnax checkballs 10000-08 (.250") are made out of tough, wear-resistant imidized plastic. The Sonnax imidized plastic balls seal better than steel balls because t...Read More

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200-4R, 32RH, 45RFE, 46RE, 46RH, 47RE, 48RE, 4L60, 4L60-E, 4L65-E, 4L70-E, 4L80-E, 4L85-E, 4R100, 4R44E, 4R55E, 4R70E, 4R70W, 4R75E, 4R75W, 4T60-E, 4T65-E, 545RFE, 5R44E, 5R55E, 60-40LE, 60-41SN, 65RFE, 66RFE, 68RFE, 6F35 (Gen. 1), 6F35 (Gen. 2), 6F35 (Gen. 3), 6F50, 6F55, 6L45, 6L50, 6L80, 6L90, 6T30 (Gen. 1), 6T30 (Gen. 2), 6T40 (Gen. 1), 6T40 (Gen. 2), 6T45 (Gen. 1), 6T45 (Gen. 2), 6T50 (Gen. 1), 6T50 (Gen. 2), 6T70 (Gen. 1), 6T75 (Gen. 1), A340E, A340F, AODE, E4OD, TH200, TH200C, TH400, TH425 Checkball 10000-08

January 05, 2016

Torque Converter Journal: January 2016

Featured in this issue:A Slippery Slope: The What (and Why) of Woven CarbonNew Converter Parts48RE Converted Valve Body CHR135

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July 29, 2015

Torque Converter Journal: July 2015

Featured in this issue:Defending the Duramax® Diesel Against Allison® 1000 Stator WeaknessEasy Repairs for Overheating Honda/Acura ConvertersNew Converter PartsDodge Diesel Performance ShaftsSonnax Website Features

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July 16, 2011

Transmission Report Newsletter: July 2011

Featured in this issue:The Sonnax RoadshowThe Ins & Outs of ReamingNew Fixes: ZF6HP19/26/32 & More

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July 16, 2021

Transmission Report Newsletter: July 2021

Featured in this Issue:68RFE Upgrades & Accumulator Piston Options You Need to Know AboutNew 8L45/90 Drop-In Zip ValvesNew Parts for Faster, Easier, More Reliable 6L80, 62TE & 6F35 Builds1000+HP Rated Input Shaft for 4L80-EGet Great Deals on Vacuum Test Equipment

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November 20, 2014

Torque Converter Journal: November 2014

Featured in this issue:4L60-E PWM Modifications4L60-E Friction Material OptionsNew Converter PartsTwo New Exploded Views

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Reinforced Input Housing Kit with Heavy Duty Input Shaft 77733-14K

  • 4L60-E
  • 4L65-E
  • Fits 300mm non-reluctor style units only.
This part has been discontinued. Click here to see the part instructions.

Reinforced Input Housing Kit with Heavy Duty Input Shaft 77733-15K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Fits 300mm reluctor style units only.
This part has been discontinued. Click here to see the part instructions.

Planetary Rebuild Kit 77732-RK

  • 4L65-E
  • 4L70-E
  • For 5-pinion rear planetary assemblies.
This part has been discontinued. Click here to see the part instructions.

300mm Performance Converter Kit GM-RK-405

  • 280mm LU (4L60-E) “VJCX”
  • 300mm (4L60-E)
  • 4L60-E, 4L65-E, 4L75-E (300mm), Multi-Plate Performance Converter
  • Street/Strip applications only.

A performance torque converter is highly specialized based on the performance characteristics of the specific vehicle. And Sonnax has several levels of kits to ens...Read More

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280mm LU (4L60-E) “VJCX”, 300mm (4L60-E), 4L60-E, 4L65-E, 4L75-E (300mm), Multi-Plate Performance Converter 300mm Performance Converter Kit GM-RK-405

300mm Performance Converter Kit GM-RK-405WC

  • 280mm LU (4L60-E) “VJCX”
  • 300mm (4L60-E)
  • 4L60-E, 4L65-E, 4L75-E (300mm), Multi-Plate Performance Converter
  • Street/Strip applications only.

A performance torque converter is highly specialized based on the performance characteristics of the specific vehicle. And Sonnax has several levels of kits to ens...Read More

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280mm LU (4L60-E) “VJCX”, 300mm (4L60-E), 4L60-E, 4L65-E, 4L75-E (300mm), Multi-Plate Performance Converter 300mm Performance Converter Kit GM-RK-405WC

300mm Performance Converter Kit GM-RK-408WC

  • 280mm LU (4L60-E) “VJCX”
  • 300mm (4L60-E)
  • 4L60-E, 4L65-E, 4L75-E (300mm), Multi-Plate Performance Converter
  • Street/Strip applications only. For use with GM 258mm early-style stators only.

A performance torque converter is highly specialized based on the performance characteristics of the specific vehicle. And Sonnax has several levels of kits to ens...Read More

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280mm LU (4L60-E) “VJCX”, 300mm (4L60-E), 4L60-E, 4L65-E, 4L75-E (300mm), Multi-Plate Performance Converter 300mm Performance Converter Kit GM-RK-408WC

Boost Valve Kit 33886-03K

  • 4T40-E
  • 4T45-E

In GM 4T40-E and 4T45-E units, the boost valve assembly is activated by torque signal pressure from the pressure control solenoid and reverse pressure to aid in ad...Read More

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4T40-E, 4T45-E Boost Valve Kit 33886-03K

TCC Regulated Apply Valve Sleeve 33000-02

  • 4T40-E
  • 4T45-E
This part has been discontinued. Click here to see the part instructions.

TCC Control Valve Sleeve 33000-03

  • 4T40-E
  • 4T45-E
  • Fits '03-earlier, .354" dia.
This part has been discontinued. Click here to see the part instructions.

Stator Support Shaft Assembly 77918S-09K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 280mm or 300mm Converter, reluctor style, '04-later.

Sonnax stator support shaft assembly 77918S-09K in GM 4L60-E, 4L65-E and 4L70-E transmissions eliminates sleeve rotation by securing the sleeve in place with Locti...Read More

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4L60-E, 4L65-E, 4L70-E Stator Support Shaft Assembly 77918S-09K

Stator Support Shaft Assembly 77918S-08K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 298mm Converter, reluctor style

Sonnax stator support shaft assembly 77918S-08K for GM 4L60-E, 4L65-E and 4L70-E transmissions eliminates sleeve rotation by securing the sleeve in place with Loct...Read More

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4L60-E, 4L65-E, 4L70-E Stator Support Shaft Assembly 77918S-08K

Stator Support Shaft Assembly 77918S-1K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 280mm or 300mm Converter, non-reluctor style. '99-'04.

Sonnax stator support shaft assembly 77918S-1K for GM 4L60-E, 4L65-E and 4L70-E transmissions eliminates sleeve rotation by mechanically fastening the sleeve in pl...Read More

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4L60-E, 4L65-E, 4L70-E Stator Support Shaft Assembly 77918S-1K
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